Week 8 Worm Gear Challenge

AIM: The main aim of this week challenge is to perform a transient structural analysis of worm gear. In this analysis need to cut the gear by half and then perform the analysis.Then compare the results of the stress,strain and deformation plots with a detailed explanation for the plots.

PROCEDURE:

step 1: Open the ansys workbench module and select the transient structural analysis.

step 2: Right click the geomentry tab and select import geomentry --> browse --> select the file --> open.

step 3: Now edit the geomentry in spaceclaim by splitting the gear into two component and delete one half of the gear.

step 4: Now open the geomentry in mechanical modeller.

step 5: Now assign the material for both worm and gear.

step 6: Now create a contact between the worm and gear.

step 7: Now create revolute joint for both worm and gear.

step 8: Now mesh the model.

step 9: Now cange the analysis settings.

step 10: Now assign the joint load in order to rotate the component.

step 11: Now run the simulation.

step 12: Now include the total deformation,Equivalent stress and strain in output files.

step 13: Now change the model as per the question and run the simulation

Step 14: Compare the result plot and give a detailed explanation.

OUTPUT REQUEST:

CONCLUSION:

EQUIVALENT STRESS		TOTAL DEFORMATION		ELASTIC STRAIN
MIN	MAX	MIN	MAX	MIN	MAX
9.08E-06	1366.4	1.1	7.2697	6.49E-11	0.00729

1. The transient structural analysis on a worm gear assembly was carried out successfully.
2. The maximum value of total deformation is 7.26 mm.
3. The maximum value of equivalent stress is developed in the teeth of the worm wheel i.e., 1366.4 MPa.
4. The maximum value of Equivalent Elastic Strain is developed in the teeth of the worm wheel i.e., 0.00729.
5. The maximum equivalent stress and strain is developed in the teeth of the worm wheel, which will eventually lead to failure hence, it is recommended to change the material of the teeth of worm wheel.